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用于聚合物共混体系的共聚物增容剂 总被引:4,自引:0,他引:4
在不相容多相聚合物体系中,共聚物增容剂的存在将对共混物的形态结构及力学性能产生极大的影响,它们的作用是增强相间粘合力,减小相表面张力。本文系统论述了共聚物增容剂的分子设计及其分子特性对增容效果的影响,并分别讨论了反应型及非反应型共聚物增容剂的近期发展。 相似文献
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Well-defined nonionic hydrophilic ω-acryloyl poly(ethylene oxide) macro-monomer (PEO-A) has been prepared by living anionic polymerization of ethylene oxidewith diphenyl methyl potassium as the initiator and acryloyl chloride as the reaction termi-nating agent. The polymer was characterized by FTIR and SEC. The emulsifier-free emul-sion polymerization of methyl methacrylate (MMA) and n-butyl acrylate (BA) containingvarious concentrations of PEO-A was studied. In all cases stable emulsion coplymerizationsof MMA and BA were obtained. The stabilizing effect was found to be dependent on themolecular weight and the feed amount of the macromonomer. 相似文献
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以氯化三苯基膦铑为催化剂,对丁二烯-b-甲基丙烯酸甲酯共聚物的催化加氢反应进行了研究,用NMR、FTIR、动态粘弹谱和化学分析法对加氢产物进行了表征。证明RhCl[P(C6H5)3]3可有效地使共聚物中的C=C加氢,且具有很高的选择性,未加氢的双键含量小于0.71%. 相似文献